I'm using Hudson CI to automate the integration of my FPGA projects. In one of the build steps, I run a logic synthesis tool which produces a report file in plain text format. The report contains a few metrics, such as the maximum frequency, which I would like to monitor over time. Here's how the maximum frequency appears in the report:

Minimum period: 5.720ns (Maximum Frequency: 174.821MHz)

How can I extract and monitor (ideally: chart) such information in Hudson?